Home / 31,600.64-47,403.12-10,838.72

Finding the Fourth Proportional to 31,600.64, 47,403.12 and 10,838.72

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Solution

The fourth proportional to 31,600.64, 47,403.12 and 10,838.72 is: 16,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,600.64 : 47,403.12 = 10,838.72 : x
  2. Step 2: Convert to fraction form
    31,600.64/47,403.12 = 10,838.72/x
  3. Step 3: Cross multiply
    31,600.64x = 47,403.12 × 10,838.72
  4. Step 4: Simplify right side
    31,600.64x = 513,789,144.81
  5. Step 5: Solve for x
    x = 513,789,144.81/31,600.64
  6. Step 6: Final answer
    x = 16,258.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.